diff -r bde44e1ddd2e -r 607008ac563e usr/src/uts/sun4v/os/mach_startup.c
--- a/usr/src/uts/sun4v/os/mach_startup.c	Tue Apr 13 09:45:48 2010 +0800
+++ b/usr/src/uts/sun4v/os/mach_startup.c	Mon Apr 12 22:00:39 2010 -0700
@@ -20,8 +20,7 @@
  */
 
 /*
- * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
+ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  */
 
 #include <sys/machsystm.h>
@@ -77,6 +76,8 @@
 extern int	clock_tick_threshold;
 extern int	clock_tick_ncpus;
 
+uint_t cp_haltset_fanout = 3;
+
 void
 setup_trap_table(void)
 {